With a given collimator the integrated reflections in the parallel and antiparallel positions will be equal . 对于一个给定的准直器，在平行和逆平行位置时积分反射是一样的。
The criterion of irreversibility is also not decisive for the interpretation of demarcation of developmental homeostasis . 不可逆标准对于解释或区分发育同形作用也是不明确的。
Depending on the intensity of the deforming forces the folds may be gentle, sharp, overturned, or overthrust . 根据变形力的强度，褶皱可以是平缓的，陡峭的，倒转的，或逆掩的。
If the light is traveling in the opposite direction, the reverse is true and the ray is bent away from the normal . 如果光线沿着反方向行进，那末就有逆关系成立，即光线更远离法线而折射。
With a revulsion of feeling, she repeated that gerald was worthless and thanked heaven that she had escaped that danger . 随着感情的剧烈逆变，她又认为杰拉尔德微不足道，她感谢上天没让她掉进陷井。
Sometimes he would watch the edges of color that the sea salt and the sand in the wood made in the flame as they burned . 有时，他瞪大了眼望着火，木块上的沙粒和盐粒，在火焰中逆发出五彩缤纷的光圈。
The causes of the disaster are due not to faulty organization, but to the misfortune in all risks which have to be undertaken . 此次灾难的原因并不在于组织工作不当，而在于一切冒险事业都会遭遇到的逆运。
They must be able selectively to allow certain molecules or ions to enter across this barrier, often against concentration gradients . 这必须能选择性地让某些分子或离子（常常是逆着浓度梯度）通过这个屏障。
Furthermore, the energy that powers the continuing evolution of the universe apparently can all be traced to nuclear reaction and transformation . 而且，赋予宇宙不断演化的动力的能量明显地可追逆到核反应和核蜕变。
The property of symmetry can also be used to save a part of the computational effort required for matrix inversion or for a solution of equations . 对称的特性也可用来节省矩阵求逆中或求解方程中所需要的一部分计算量。
